Latest activity
-
Wwendellbernard replied to the thread Combination Calculation. Please Help..You’re actually correct! Since each of the 3 columns picks 1 of 7 clips independently and repeats are allowed, the total number of...
-
Kkhansaheb replied to the thread Help with quiz.This is a 4 year old "LAZY" inquiry............
-
Ffresh_42 replied to the thread Conjecture: n² divides Σ_{k=1..n} (2^k-2)/k numerator iff n is prime.I'm not convinced yet how difficult it really is. I'm trying to use 2^n-1=\sum_{j=0}^{n-1} 2^{j}=\sum_{k=1}^n \binom n...
-
Sscottbrandon replied to the thread Help with quiz.You find 𝑐 c, 𝑛 n, 𝑚 m, and 𝑑 d by rearranging the first equation so it matches the second formula. Once it’s in that form, 𝑐 c is the...
-
Rrad_2007 replied to the thread Conjecture: n² divides Σ_{k=1..n} (2^k-2)/k numerator iff n is prime.Thanks for your valuable insights! The conjecture I proposed is supported by extensive computation up to 10^7 with no counterexamples...
-
-
Ffresh_42 replied to the thread Conjecture: n² divides Σ_{k=1..n} (2^k-2)/k numerator iff n is prime.This sounds as if you should dive deep into the theory of Mersenne numbers. If true, it also provides a primality test. However, there...
-
I don't understand the Hebraic content of your post but, unless it is saying something you haven't translated, I'm at a loss to know... -
Here is Google's translation: For a quick explanation: All cones in the picture are similar (because angles are the same), so volumes... -
Hi @shahar I suspect the answer will be: ד=(d), as the cone needs to be just over 79% full for it to be "half full" (by volume). The...
-
Dr.Peterson replied to the thread half cone.Here is Google's translation: For a quick explanation: All cones in the picture are similar (because angles are the same), so volumes... -
-
The Highlander replied to the thread half cone.Hi @shahar I suspect the answer will be: ד=(d), as the cone needs to be just over 79% full for it to be "half full" (by volume). The... -
Rrad_2007 posted the thread Conjecture: n² divides Σ_{k=1..n} (2^k-2)/k numerator iff n is prime in Advanced Math.Hello everyone, I’ve been investigating the sum: S(n) = Σ_{k=1}^{n} (2^k - 2)/k for n > 3. Conjecture (strong numerical...
-
In which methods can I solve it: Before you have 4 cones. Which one of them is "half full"? The text in the source: לפניכם ארבעה...
-
-
NHi Everyone! Over the last 2 years, I’ve been working on a free self-tutoring math website, Step By Stem. I know math has a lot of...
